Answer:
2. ![V_2=17L](https://tex.z-dn.net/?f=V_2%3D17L)
3. ![V=82.9L](https://tex.z-dn.net/?f=V%3D82.9L)
Explanation:
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2. In this case, we can evidence the problem by which volume and temperature are involved, so the Charles' law is applied to:
![\frac{V_2}{T_2}=\frac{V_1}{T_1}](https://tex.z-dn.net/?f=%5Cfrac%7BV_2%7D%7BT_2%7D%3D%5Cfrac%7BV_1%7D%7BT_1%7D)
Thus, considering the temperatures in kelvins and solving for the final volume, V2, we obtain:
![V_2=\frac{V_1T_2}{T_1}](https://tex.z-dn.net/?f=V_2%3D%5Cfrac%7BV_1T_2%7D%7BT_1%7D)
Therefore, we plug in the given data to obtain:
![V_2=\frac{18.2L(22+273)K}{(45+273)K} \\\\V_2=17L](https://tex.z-dn.net/?f=V_2%3D%5Cfrac%7B18.2L%2822%2B273%29K%7D%7B%2845%2B273%29K%7D%20%5C%5C%5C%5CV_2%3D17L)
3. In this case, it is possible to realize that the 3.7 moles of neon gas are at 273 K and 1 atm according to the STP conditions; in such a way, considering the ideal gas law (PV=nRT), we can solve for the volume as shown below:
![V=\frac{nRT}{P}](https://tex.z-dn.net/?f=V%3D%5Cfrac%7BnRT%7D%7BP%7D)
Therefore, we plug in the data to obtain:
![V=\frac{3.7mol*0.08206\frac{atm*L}{mol*K}*273.15K}{1atm}\\\\V=82.9L](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B3.7mol%2A0.08206%5Cfrac%7Batm%2AL%7D%7Bmol%2AK%7D%2A273.15K%7D%7B1atm%7D%5C%5C%5C%5CV%3D82.9L)
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Oxygen had 6 valence electrons
Two things
Ferrous Ammonium Sulfate is a pale green or blue-green powder or sand-like solid. It is used in photography, analytical chemistry, and Iron-plating baths.
An FAS-DPD titration is as simple as a test for total alkalinity or calcium hardness. A buffered DPD indicator powder is added to a water sample and reacts with chlorine to produce the pink color characteristic of the standard DPD test.
Hope this it gang
NO₂ is a brown gas while N₂O₄ is colorless. If heating causes a brown color to persist, then this means that heating causes the reaction to shift backwards and produce NO₂. Therefore, the reaction must be exothermic.